Dry gas-cleaner.



A. F. PLOGK.

DRY GAS CLEANER.

APPLICATION FILED MAY 24, 1912.

Patented Mar. 11, 1913.

INVENTOR Albr-i- F. 'Ploclc ATTORNEYS UNITED STATES PATENT OFFICE.

ALBERT F. PLOCK, OF PITTSBURGH, PENNSYLVANIA.

DRY GAS-CLEANER.

To all whom it may concern:

Be it known that ITAusmrr F. PLOCK, a citizen "of the United States, and a resident of Pittsburgh, in the count ofAllegheny and State of Pennsylvania, a-vcinvented a new and Improved Dry .Gas-Cleaner, of which the following is a full, clear, and exact description.

This invention relates to a structure es pecially ada ted for dry-cleaning gases, particularly last furnace gases, in an efcient and economical manner.

As a result of the coaetion of air and coke and ore in a blast furnace, gases are formed, which gases are of value in heating the furnaces, for use in explosive eng'ines, or, in fact, many different uses, since the heat units present in such resulting gases are high; However, such furnace gas contains considerable dust which renders it necessary to clean the gas before the same can be utilized for heating or power pur-,

oses. v p The design of the present invention is the production of a dry gas cleaner of improved construction and tending to the more economical separation of the dust from the gas, the construction .of-the cleaner being such that the amount of dust per cubic foot of gas after passing through suchclea'ner is materially and substantially reduced.

It is also a design of the present invention to provide .a dry gas cleaner characterized by a construction in the nature of pockets which will receive the dust from the whirling gas, due to centrifugal force, the said pockets conducting the dust to a suitable receptacle in position for withdrawal in adry condition.

It is also a design of the present invention to provide a dry gas cleaner characterized by construction which will insure a definite amount .of travel of the gas through the cleaner before the gas is admitted to the flue or outlet.

Other advantages, not articularly now set forth, will appear as tlie'description of the preferred-embodiment of the structure proceeds, the new and useful features characterizing such structure being set forth and included within the claims.

' Reference is to be had to the accompanying drawings, forming part of this specifi- Specification of Letters Patent.

b Application filed May 24, 1812. Serial No. 899,881.

Patented Mari 11, 1913.

cation, in which similar characters of reference denote corres ending parts-in allthe views, and in whicii Figure 1 is a vertical sectional view of the dry gas cleaner; Fig. 2 is a sectional view on the line 3-3 of Fig. 1; Fig. 3 is an enlarged detailed sectional view, showing the construction of the pockets adjacent the periphery of the cleaner. I

The dry gas cleaner is adapted to be connected to a dust catcher which is positioned between the cleaner and the furnace, any suitable and desirable form of flue connecting the furnace and the dust catcher, while another flue extends between the catcher and the cleaner.

Referring particularly to Figs. 1- and 2,

wherein the detailed construction of the shell 10 closed at the bottom by thejnverted conical pocket 11 and at thetop by the conical closure element 12 having, an opening extending therethr'ough to receive a flue 13, held.in' position in any'suitable" and d sirable manner, preferably by means of angle irons or plates 14. The main body 10 of the cleaner may be supported in position by any suitable structure or framework, the preferred form embodyin vertically extending columns 15 0f' Sl11t!tl)le height. so that the valve 16, which closes the bottom of the main body'mcmber, may be in position for convenient manipulation. Extending vertically within the main body of the cleaner and secured in any suitable manner therein, and preferably at the central portion thereof, is a vertically extending passageway 17 which may be conveniently formed of sheet metal; the loweropen end of this passageway or flue is ad'acent the apex of the conical structure 18a jacentthc bottom of the body'of the cleaner, the inclined sides of the cone being particularly adapted for a purpose to be hereinafter set forth.

Referring particularly to Fig. 2, it willbe noted that the flue 5 adjacent the u per end of the cleaner, which flue receives t e gas or gases from the preceding element of the outfit, communicates tangentially with the body of the cleaner so that gases passing through theisaid flue and into the cleaner will travel therethroug'h in a whirling manner, due to the velocity of the gases, this whirling being promoted by means of the inclined .and s iral plate 19 surrounding the outside of t e flue or passageway 17 and terminating adjacent the lower en end thereof, the

upper end of this spira plate being adjacentthe opening in the side of the main body which communicates with the said flue 5; the plate is secured at its ends in an suitable and desirable manner, preferably y means "of angle irons '20, secured to the parts by ineansof rivets. Since the hot gases entermg the cleaner through the flue 5 possess considerable velocity, the inside of the main Bed '10 of the cleaner opgos'ite the openin f (if t e'said flue is rovide 1 steel plate 21 whic extends around substanwith a hardene 4 tially one quarter of the periphery of the cleanen'this plate taking up any effect in the" nature-.of-a sand blast, due to the partieles of duster other material retained withthe gas, and bemg in such position that it may be worn. I

Secured tothe inside of the body 10 of the easily and quickly replaced when cleaner and spaced apart substantially equal distances, which distance',zhowever, 1s variable, are a number of Z-bars 22, oneof'the paarallel sides of each bar carr ing an anguj'rly extending plate 23, as s own partieu ia'rly' in Fi si 2 and. 3, itbeing'n-oted that eiichone 0' these plates extendsin a direc-- tibnopgosite to'the direction-of travel of the gas or ust through-the-eleanerj f "The Z-bars extend frornflthebottom bf the main body of fthe'eleaner adjacent the lower 1 end portionof the cone .18 to a point below the said removable plate 21 top osite the ope'nin of theflue 5, some of t e Z-ba rs, es' ecia 1y those adjacent the end of. the

spiral plate I9 being different in length and terminating a jacentfthe end of .this late, as-shown particularly in Fig. 1. It Wlll'bfi noted that :the' saces betweenkthe Z-bars lates 23 so that, as the gas whirls down- 1 through the cleaner, the "dustand partic es contained therein will be caught within the ockets between the Z-bars and under the influence of gravit will fall down into the pocket formed y the said inverted cone '11; the inclination of the spiral-plate assists the catching of the dust inthe pockets since under the influence of gravity the dust will tend to roll down the' plateand will, under the further influence of gravity, fall through the pockets between the Z-bars, finally coming to rest in the inverted cone structure 11. u I

By referrin to the element 19 as aspiral plate, it is un erstood that such term means a substantially continuous plate extendin around the. flue" 17, the projection of'sucfi plate on the flue forming substantially a elix; the use of the term fining this spiral plate means, as clearly seen in Fig. 1, that the outer edge ortions of the plate lie in different planes t an the corresponding inner edge portions of,the plate, tie result being that the projection of the outer edge portion on the ue will generate a second helix on the. said flue, se arated from the first one for a distance which will inclined in de-' depend upon the inclination of the said 1.

plate. The particular-function of this inclined feature is that the force of gravity acting on the solid particles present on the plate. will cause them to roll'down adjacent the pockets between the Z-bars'22 adjacent the outer edge portion'of the plate.

From a considerationof the structure shown and described, it"is apparent that the cleaner set forth tends to a simple'and efficient method of removing dust and particles from gases; the provision of the pockets with the outwardly or angularly extending plates 23 provide traps which receive the dust and particles, due to centrifugal force,

the provision of the downwardly inclining s iral plate tending also to easily bring a out an accumulation of the dustin the bottom of the cleaner under the influence of I the force of gravity. The parts of the cleaner which come into contact-with the hot gases, and especially those arts which receive the im act of; the particles due to the velocity of t e gases, are made of material to successfully withstand such impact for a longer or shorter time, such material being referably hardened steel, the structure owever, being such that elements thereof may be easily and quickly replaced in the event of wear from such. causes. I

In order to insure the travelof the hot gases throughout the length. of thespiral plate 19, a vertical plate 24 is preferabiiv made use of, this plate being positioned a 7 jacent the to of the cleaner, as shown particular v in ig. 1, bein secured in position to the no 17 in any desirable manner, as by means of angle irons 25. This Plate prevents the hot gases from passin down the adjacent side of the cleaner, ma g it nec- 'e'ssary for the gases to circulate around the Various changes may be made in the size and material of the different parts in order to set forth an efiieient structure, such changes not involving a departure from the inventiveidea disclosed.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent 1. A gas cleaner having a tangential inlet a flue serving as an outlet, the entrance of the flue being remote from the said inlet, means whereby the gases must pass through a certain distance before entering the flue, the said tangential inlet imparting a whirling movement to the gas when passing through the cleaner, a number of longitudinally extendin Z-bars within the cleaner, one side of eac bar being provided with a longitudinally extending plate, the end of WlllOh, with the next adjacent Z-bar, forms a pocket, the said pockets receiving and conducting away the dirt and foreign matter trapped therein from the gas due to the whirling movement thereof through the cleaner.

2. A gas cleaner embodying'a shell, the lower end thereof being provided with a pocket, the upper end of the shell being provided with an inlet to one side of the central axis, whereby incoming gases have a whirling movement imparted to them, a longitudinally extending flue within the shell, the lower end of the flue being open and being remote from the inlet, a number of peripheral pockets adjacent the inside of the shell, the said pockets being included between angularly formed plates extending longitudinally of the shell, the direction of extent of each plate being opposite the direction of travel of the gases passing through the cleaner, an inclined sp ral plate between the inlet and the entrance to the flue, a cone above the pocket at the bottom of the cleaner, the apex of the cone being adjacent the lower end of the flue, the spiral plate forming a definite path which the gases must take in their passage from the cleaner, the force of gravity bringing particles on the plate into the said pockets due to the inclination of the plate, and the inclined surface of the cone receiving and conveying the dust and foreign matter to the said ocket at the bottom of the shell in position ibr removal.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT F. PLOCK.

Witnesses:

E. Srnvmson, G. C. Sunonns. 

